JPH0340547B2 - - Google Patents
Info
- Publication number
- JPH0340547B2 JPH0340547B2 JP20233586A JP20233586A JPH0340547B2 JP H0340547 B2 JPH0340547 B2 JP H0340547B2 JP 20233586 A JP20233586 A JP 20233586A JP 20233586 A JP20233586 A JP 20233586A JP H0340547 B2 JPH0340547 B2 JP H0340547B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- ring trip
- circuit
- ring
- comparator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000007257 malfunction Effects 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60-188876 | 1985-08-28 | ||
| JP18887685 | 1985-08-28 | ||
| JP60-287058 | 1985-12-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62230147A JPS62230147A (ja) | 1987-10-08 |
| JPH0340547B2 true JPH0340547B2 (fr) | 1991-06-19 |
Family
ID=16231419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20233586A Granted JPS62230147A (ja) | 1985-08-28 | 1986-08-28 | リングトリツプ回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62230147A (fr) |
-
1986
- 1986-08-28 JP JP20233586A patent/JPS62230147A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62230147A (ja) | 1987-10-08 |
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